baber/WOPTO huggingface dataset:
Patent CA-1146531-A (CA)
Title: Procede de preparation de nouveaux derives  2,2- dimethyl 19-nor steroides
Inventor: NEDELEC LUCIEN
IPC: C07J53/00
Filed: 1979-12-12
Granted: 1983-05-17
Abstract: L'invention concerne de nouveaux composés répondant à la formule générale (I') <IMG> (I') dans laquelle R3 représente un radical alkyle renfermant de 2 à 4 atomes de carbone, R'4 représente un atome d'hydrogène, un radical hydroxyle, ou un radical acyloxy renfermant de 1 à 18 atomes de carbone et, ou bien R1 et R2, identiques ou différents, représentent un atome d'hydrogène, un radical alkyle renfermant de 1 à 4 atomes de carbone ou un radical alkényle ou alkynyle renfermant de 2 à 6 atomes de carbone, étant entendu que seul un des substituants R1 et R2 peut représenter un atome d'hydrogène, ou bien R1 et R2 forment ensemble un radical cycloalkyle renfermant de 3 à 8 atomes de carbone. Les composés selon l'invention sont des antagonistes de l'aldostérone et augmentent la diurèse hydrosodée avec conservation du potassium organique. Ils sont dénués d'effets secondaires.
Patent CA-1129940-A (CA)
Title: Nozzle valve for ink jet printers
Inventor: CAMPBELL ALAN S
IPC: B05B1/02
Filed: 1979-12-13
Granted: 1982-08-17
Abstract: NOZZLE VALVE FOR INK JET PRINTERS                    Abstract of the Disclosure Disclosed is improved apparatus for inhibiting the emission of a stream of ink drops from the nozzle orifice of an ink jet printer.  The apparatus comprises a valve which is located externally of the head associated with the nozzle, and adjacent the outlet orifice of the nozzle.  The valve includes a resilient gate member which is mounted for movement with respect to the outlet orifice but adjacent thereto, the gate member being movable between a first position allowing an uninhibited emission of a stream of ink drops from the outlet orifice of the nozzle and a sealing position of the outlet orifice when the gate member is in a second position.  In this connection, the outlet orifice serves as a seat for the gate member when the member is in the second position.  Moreover, the gate member is preferably composed of a thin but resilient material which is biased into a sealing engagement with the seat at least when the gate member is in the second position.
Patent CA-1134119-A (CA)
Title: Procede de traitement d'un acide phosphorique impur
Inventor: NINEUIL GUY
IPC: C01B25/234
Filed: 1980-01-23
Granted: 1982-10-26
Abstract: L' invention concerne un procédé de prétraitement d'un acide phosphorique brut de voie humide.  Ce procédé comporte le traitement de l'acide brut au moyen d'un agent adsorbant dans des conditions telles qu'il y ait suspension de l'agent, puis le traitement de la suspension au moyen d'un agent de floculation, le maintien du mélange résultant sous agitation non cisaillante et la séparation de l'acide purifié et du floculat.  On obtient ainsi un acide purifié apte à subir des traitements par extraction liquide-liquide.
Patent CA-1132332-A (CA)
Inventor: REICHERTS JAMES E
IPC: E04B9/00
Filed: 1980-01-30
Granted: 1982-09-28
Abstract: APPLICATION FOR LETTERS PATENT     "MOBILE ROME CEILING CONSTRUCTION AND METHOD FOR MAKING"                          ABSTRACT      A mobile home ceiling unit and a method for manufacturing said unit are disclosed. The mobile home ceiling unit comprises an arranged plurality of panels fastened to a roof frame.  The roof frame has an outer truss member at opposite ends and a multiplicity of intermediate truss members therebetween. Inter-mediate truss members being rigidly affixed to the panels by means of back fasteners and adhesive material.  The roof frame addition-ally provides perimeter side edge rails.  The side edge rails and outer truss members are fastened to the panels by means of front face fasteners along the perimeter of the front face surface of the panel arrangement.  The front face surface perimeter of the ceiling unit is adapted to supportively coact along support wall means. The ceiling unit provides a concealed back fastened ceiling structure having unitized construction.   A method for making said unitized, ready-to-install, mobile home ceiling structure is also disclosed.  The method comprises the steps of arranging a plural-ity of rectangular panels on a tunnel jig.  A roof frame struc-ture is then positioned and fastened on the back face surfaces of the panels by moans of fasteners and adhesive along the bottom chords of intermediate roof frame truss members.  The method additionally includes the step of fastening roof frame perimeter side edge rails and outer truss members to the panel arrangement perimeter by means of fasteners driven upwardly through the front face surface of the panels to extend through the panels and pen-etrate the side edge rails and outer truss members. The method includes the step of transporting the mobile home ceiling struc-ture from the tunnel jig in ready-to-install condition wherein the setup time of the adhesive material does not restrict moving the unit.
Patent CA-1145515-A (CA)
Title: Treatment of fibers
Inventor: MATHES NIKOLAUS
IPC: D01F6/90
Filed: 1980-02-26
Granted: 1983-05-03
Abstract: A b s t r a c t Fiber structures such as staple fibers, filaments, yarns as well as textile sheet structures such as woven or knitted fabrics as well as non-woven fabrics and the like made from multicomponent fibers of the matrix-segment type (bicomponent satellite structure) having in their cross sections at least 3 or at least 6 segments arranged peripherically without being fully surrounded by the matrix and being composed of polyalkylene terephthalate and copolyamides based on .epsilon. -caprolactam and hexamethylene diamine/adipic acid salt, are split by treatment with liquid or vaporous water. The difference in shrinkage between copolyamide and polyalkylene terephthalate in water is temporarily at least 10 %. Corresponding short-staple fibers are particularly well suited for making wet-spun non-woven fibrics. The water used for treatment of the fiber structures may contain inorganic salts.
Patent CA-1153525-A (CA)
Inventor: DOMINGUEZ RICHARD J G
IPC: B29C67/24
Filed: 1980-04-14
Granted: 1983-09-13
Abstract: D.75,752-FB     HEAT STABLE REACTION INJECTION MOLDED ELASTOMERS                                ABSTRACT         The invention is a method for making reaction injection molded polyurethane of improved properties and the resulting molded polyurethane.   The product comprises the cured reaction product of a high molecular weight polyhydric polyether, a low molecular weight active hydrogen containing compound having a functionality of at least two and a polyisocyanate.          The reaction product is cured by subjecting it to an ambient temperature of from 290 - 425 ( 143 to 219°C) for a time sufficient to achieve an improvement in properties.
Patent CA-1109930-A (CA)
Title: Charging circuit for battery in thermostat with battery operated timer
Inventor: DONNELLY DONALD E
IPC: G05D23/275
Filed: 1980-05-01
Granted: 1981-09-29
Abstract: ABSTRACT OF THE DISCLOSURE     A timer controlled space thermostat includes a battery operated timer and charging circuit means for continuously charging the battery.          The charging circuit means includes a miniature transformer having two primary windings and one secondary winding wound on a single core.  When a thermostat switch therein is closed to effect energizing of a space conditioning apparatus, one of the primary windings induces a stepped-up voltage and stepped-down current in the secondary winding to effect charging the battery.  When the thermostat switch is open, the other primary winding induces a stepped-down voltage and stepped-up current in the secondary winding to effect charging the battery.
Patent CA-1159849-A (CA)
Inventor: JONGSMA CORNELIS
IPC: C07C67/00
Filed: 1980-05-14
Granted: 1984-01-03
Abstract: ABSTRACT           The invention relates to a method for the preparation of a pure alkali metal benzoate, specifically of a pure alkali metal benzoate from benzyl benzoate prepared by oxidation of an alkyl benzene compound, specifically toluene, with a gas containing molecular oxygen, besides benzyl alcohol, Very specifically the invention relates to a method for the preparation of sodium benzoate besides benzyl alcohol. For this purpose crude benzyl benzoate is subjected to a treatment with a reducing substance to convert impurities, under such circum-stance that, in the process, there will be no conversion of any substantial quantity of benzyl benzoate. Subsequently the benzyl benzoate is saponified to the alkali metal benzoate and benzyl alcohol.
Patent CA-1148961-A (CA)
Inventor: HARRIS PATRICK C
IPC: C07D333/24
Filed: 1980-06-18
Granted: 1983-06-28
Abstract: ABSTRACT         A process is disclosed for preparing 3-thienyl malonic acid, comprising treatment of a 3-thienyl cyanoacetate of formula (III):                                           (III) where R1 represents an aryl or alkyl group, with at least a molar excess of an alkali metal hydroxide, this being a one-step process as compared to the prior art and providing the pro-duct in good yield.  3-thienyl malonic acid is useful as an intermediate in the production of certain penicillins.
Patent CA-1105288-A (CA)
Inventor: CLINGMAN WILLIAM H JR
IPC: G01N25/32
Filed: 1980-08-11
Granted: 1981-07-21
Abstract: ABSTRACT OF THE DISCLOSURE           Method of and means for accurately measuring the calorific value of combustible gases wherein a mixture of com-bustible gas and combustion-supporting gas is burned in a pair of flames, the temperatures of the burned gases in both flames being monitored and the volume ratios of the combustion-supporting gas to the combustible gas fed to both burners being adjusted so as to maintain the average of said temperatures at sub-stantially maximum; the volume ratio of said gases which produces said maximum average temperatures varying substantially directly with the calorific value of said combustible gas; the aforesaid calorific value being proportional to said volume ratio of said gases which maximizes said average temperatures; the flow rates of said gases being measured by a single flow sensing system, preferably, of the turbine flowmeter types, or the volumetric flow rate of said combustion-supporting gas being maintained at a constant value while the volumetric flow rate of said combustible gas is being measured; said calorific value measuring method and means being unaffected by ambient temperature and other varying environmental factors.  In one embodiment, automatic calibration of the device is obtained by alternately feeding a standard gas and the unknown gas to the burners.
Patent CA-1134575-A (CA)
Title: Linear draw system
Inventor: BUCHERT HERMANN
IPC: D01D7/00
Filed: 1980-09-04
Granted: 1982-11-02
Abstract: TITLE               LINEAR DRAW SYSTEM     ABSTRACT OF THE DISCLOSURE            A device for drawing filamentary polymeric material affords simple and efficient string-up from source to take-up without any operator exposure to moving rollers.  Provided is a roller assembly having at least three rollers, at least two of which are motorized.  The rollers are spaced from each other in a first position, which provides for passage of filamentary polymeric material in a straight line from a source of supply through space between the initially stationary rollers and thence to a means for winding the filamentary polymeric material into a package.  Provided also is a mechanism for moving at least one roller to a second position which affords contact of the filamentary polymeric material with the surface of an upstream and a downstream motorized roller over a surface angle of less than 360°.  The filamentary polymeric material adheres to the surfaces of the motorized rollers without slippage, and is drawn between the upstream and downstream motorized rollers when these rollers are caused to move.
Patent CA-1142743-A (CA)
Inventor: HESTERMANN KLAUS
IPC: C23F11/18
Filed: 1980-10-07
Granted: 1983-03-15
Abstract: ABSTRACT OF THE DISCLOSURE:    The invention relates to a corrosion-inhibiting active pigment for use in the surface protection of iron and iron alloys. The pigment consists of a mixture of calcium hydrogen phosphate dihydrate, magnesium hydrogen phosphate trihydrate and zinc oxide. More specifically, the mixture contains 2 to 98 weight% of ZnO and 98 to 2 weight% of phosphate components. These in turn contain 3 to 97 weight%, of CaHP04 . 2 H2O and 97 to 3 weight% of MgHFO4 . 3 H2O. The active pigment is suitable for use in painting com-positions or lacquers.
Patent CA-1157504-A (CA)
Inventor: DICKIE HUGH G
IPC: G11B21/02
Filed: 1980-11-21
Granted: 1983-11-22
Abstract: LIMITED ANGLE ELECTRIC ROTARY ACTUATOR   FOR OPERATING MAGNETIC READING HEAD                        ABSTRACT     An electric rotary actuator, for producing rotation through a limited angle, comprises an internal stator having a common cylindrical surface around which is disposed a plurality of circumferentially spaced magnetic pole faces. A flux return means, together with the stator, forms a circuit that includes a magnetic flux gap of annular cross-section between the pole faces and the flux return means.  An external non-magnetic cylindrical shell rotor, having an electrically conductive winding, is co-axially located in the flux gap, the winding comprising a number of loop coils arranged edgewise in a more or less continuous cylindrical structure so that each pair of axially extending portions of adjacent coils lies opposite a respective one of the pole faces.  The stator comprises a number of axially extending permanent magnet segments the outer faces of which define the common cylindrical surface of the stator, and a central magnetically permeable core on which magnet segments are mounted; the flux return means comprising a cylindrical shroud surrounding the loop coils; and the shroud being slotted between magnet segments.     . . ,
Patent CA-1145949-A (CA)
Inventor: KRAMER PETRUS J A
IPC: F27D25/00
Filed: 1980-12-15
Granted: 1983-05-10
Abstract: 1.     "Method of removal of slag deposits from the bottom of a furnace"                    ABSTRACT OF THE DISCLOSURE     Slag deposited on the bottom of a steel making furnace, especially a soaking pit for steel ingots, is difficult to remove.  To enable this to be done while the furnace is hot, it is now proposed to supply a substance, I e.g. ferro-silicon, which lowers the melting point of the slag, and a substance which reacts exothermically to initiate meltlng of the slag.  When the slag is sufficiently liquefied, it is removed by means of a mechanical grab.
Patent CA-1177956-A (CA)
Inventor: FUKUSHIMA TOSHITAKA
IPC: G11C17/00
Filed: 1980-12-17
Granted: 1984-11-13
Abstract: Abstract of the Disclosure A field programmable device comprises a memory cell part, and several test bit rows provided along bit lines of the memory cell part and a plurality of test word rows provided along word lines of the memory cell part.  At least one of the test bit rows and at least one of test word rows is written-in with a write-in ratio different from those of the other test bit rows and test word rows, respectively.  The invention makes it possible to perform complete tests on the operational speed of the device and is particularly applicable to high speed Schottky-type PROMS.
Patent CA-1151551-A (CA)
Inventor: MANN GAMDUR S
IPC: F01N3/02
Filed: 1981-01-13
Granted: 1983-08-09
Abstract: D-3,965  C-3,208 DIESEL EXHAUST PARTICULATE AND ORGANIC VAPOR EMISSION CONTROL          Abstract of the Disclosure A system for controlling emissions of particu-lates and heavy organic vapors in the exhaust gases of diesel engines includes, in a preferred embodiment, a heat exchanger for cooling the engine exhaust gases below the condensation temperature of the organic vapors and their resultant adsorption onto the entrained particulates, and a particulate trap connected to receive the cooled gases from the heat exchanger and collect therefrom entrained particulates and heavy organic vapors adsorbed thereon. A bypass system is provided to direct high temperature exhaust gases around the filtration device to avoid desorption of condensed vapors from the collected particu-lates and other auxiliary filter and control means are included.
Patent CA-1161024-A (CA)
Title: Process for the polymerization of ethylenically  unsaturated monomers
Inventor: LUNDIN CLAES O A
IPC: C08F2/16
Filed: 1981-01-27
Granted: 1984-01-24
Abstract: Abstract A process for the polymerization of ethylenically unsaturated monomers wherein a solid, monomer-soluble, free-radical forming compound is used as initiator.  The initiator is charged to the polymerization system in the form of an aqueous dispersion comprising an emulsifier combination which consists of an ethoxylated nonionic emulsifier with an HLB-value above 15, which does not con-tain cyclic inner ether bonds, and a non-ethoxylated nonionic emulsifier with an HLB-value below 9.  The emulsifier combination has a resulting HLB-value within the interval 11-17 and the combination is used in an amount of at least 1 % by weight based on the initiator.  Polymerizates produced according to the method have good electric insulation properties.  A means suitable for the polymeriza-tion of ethylenically unsaturated monomers consists of an aqueous dispersion of a free-radical forming initiator, which dispersion comprises the mentioned emulsi-fier combination in an amount of at least 1 per cent by weight, based on the initiator.  The dispersion preferably also contains a protective colloid such as polyvinyl alcohol.  The dispersions have good stability and are easy to handle.
Patent CA-1151509-A (CA)
Inventor: TSUBATA NORITAKA
IPC: A44B19/40
Filed: 1981-02-19
Granted: 1983-08-09
Abstract: ABSTRACT OF THE DISCLOSURE      A woven slide fastener stringer comprises a binding thread system extending along a row of continuous coupling elements and fixing the latter to a longitudinal tape edge portion of a woven stringer tape.  The binding thread system includes a warp thread extending through a space defined in the coupling element row and underlying the upper legs adjacent to the coupling heads of the coupling elements, and a weft thread having first loops interfaced with the longitudinal tape edge portion and second loops each overlying the upper leg of one of the coupling elements in transverse relation adjacent to the coupling head and underlying the warp thread at positions one on each side of the upper leg, whereby the upper legs are sandwiched by the warp and weft threads.
Patent CA-1146198-A (CA)
Inventor: BILLER BRUCE A
IPC: H01H85/02
Filed: 1981-03-20
Granted: 1983-05-10
Abstract: ABSTRACT OF THE DISCLOSURE An improved cutout which accepts a fuse tube of standard length, which is costly to manufacture and which exhibits improved performance, has an offset, rather than a straight, recoil bar. The offset positions the end of the recoil bar closer to the short leg of a J Spring, and positions a hole in the end, through which freely passes a pin interconnecitng the legs of the J, closer to a convexity in the short leg. Operation of the cutout causes a fuse tube, one end of which is in the concavity, to experience random longitudinal and transverse thrust forces. The offset limits the transverse motion of the short J leg and the fuse tube can exper-ience to (a) limit bending forces of the tube and breakage thereof, and (b) prevent the fuse tube disengaging the concavity before the longitudinal thrust thereof subsides. The offset also ensures that longitudinal thrust forces the tube are simul-taneously transferred from the one end of the fuse tube to the recoil bar and from the other end of the tube to a contact assembly opposite from the recoil bar.
Patent CA-1171790-A (CA)
Inventor: GILBERT DAVID J
IPC: A61K9/08
Filed: 1981-04-09
Granted: 1984-07-31
Abstract: ABSTRACT         An anti-inflammatory pharmaceutical composition is described which is adapted for topical application to the eye and contains as active principle a compound of formula   or a pharmaceutically acceptable salt thereof where R1 is a chlorine atom or a methyl group, P2 is a hydrogen atom or a methyl group and R3 is a hydrogen atom or a methyl group.  The composition may be used to treat ocular inflammation.
Patent CA-1159949-A (CA)
Inventor: HASHIMOTO YOSHITAKA
IPC: H04N5/92
Filed: 1981-04-10
Granted: 1984-01-03
Abstract: ABSTRACT OF THE DISCLOSURE           A digitized video data recording and/or reproducing system is disclosed, wherein a plurality of rotary magnetic heads are provided in association with a tape guide drum on the periphery of which a magnetic tape is helically trans-ported at a predetermined wrap angle, a signal processing circuit is provided for dividing a digitized video signal of one horizontal scan interval into a plurality of data blocks, and a signal distributing circuit is further provided for assignning every even number of the data blocks within one horizontal scan interval to each of the rotary magnetic heads for recording.
Patent CA-1152986-A (CA)
Inventor: RAKHIT SUMANAS
IPC: A61K45/06
Filed: 1981-04-13
Granted: 1983-08-30
Abstract: ABSTRACT OF THE DISCLOSURE        Herein is disclosed 2-(1-piperazinyl)-4-pyrimidinamine and 2-(1-piperazinyl)-4-quinazolinamine derivatives, acid addition salts thereof, processes for their preparation, methods of using the derivatives and pharmaceutical compositions of the derivatives.  The derivatives are useful for treating hyper-tension in a mammal.
Patent CA-1168114-A (CA)
Inventor: GUNDLACH ROBERT W
IPC: G03G15/06
Filed: 1981-04-27
Granted: 1984-05-29
Abstract: ABSTRACT OF THE DISCLOSURE           In the development of nonuniform latent images on an imaging member, wherein xerographic polar or polarizable toner particles are em-ployed, it is desirable to utilize a development system that will bring the polar or polarizable toner into contact with the latent image without triboelectri-cally charging the particles and permitting use of nonmagnetic particles when the image is electrostatic and without demagnetizing the latent image when it is magnetic.   To achieve this aim, a dielectric brush having convergent electrostatic fields is disclosed and claimed.
Patent CA-1172697-A (CA)
Inventor: GOLLOMP BERNARD P
IPC: G01R31/319
Filed: 1981-05-12
Granted: 1984-08-14
Abstract: Disclosure 247-78-0020 ABSTRACT OF THE DISCLOSURE Switching equipment in a testing apparatus employs a common signal bus (B1, B2), a plurality of switching net-works (14), a plurality of switching couplers (28, 30, 32) and a control device (40).  The testing apparatus can measure with a plurality of instruments (26) the response of a unit under test (10), which unit has a plurality of test terminals (12). The switching networks (14) each have at least two active states.  In each of its active states the switching networks (14) are operable to connect at least one of the plurality of test terminals (12) to the bus (B1, B2).  Each of the networks has a selection input (24) operable to select its state.  The switching couplers  (28, 30, 32) each has a control terminal (34, 36, 38).  Each also has a switched input connected to a different corresponding one of the instruments.  Each of these couplers (28, 30, 32) is Disclosure 247-78-0020 operable by its control terminal (34, 36, 38) to connect and disconnect its corresponding one of the instruments (26) to the bus (B1, B2).  The control device (40) is connected to each of the switching networks (14) and couplers (28, 30, 32) for providing a separate signal to each selection input (24) and each control terminal (34, 36, 38).  The  control device (40) is operable for each of the test terminals (12) to connect it through the bus (B1, B2) to at least one of the instruments (26).